Datasheet
PIC32MX5XX/6XX/7XX
DS60001156H-page 264 2009-2013 Microchip Technology Inc.
REGISTER 23-7: CiRXOVF: CAN RECEIVE FIFO OVERFLOW STATUS REGISTER
Bit
Range
Bit
31/23/15/7
Bit
30/22/14/6
Bit
29/21/13/5
Bit
28/20/12/4
Bit
27/19/11/3
Bit
26/18/10/2
Bit
25/17/9/1
Bit
24/16/8/0
31:24
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
RXOVF31 RXOVF30 RXOVF29 RXOVF28 RXOVF27 RXOVF26 RXOVF25 RXOVF24
23:16
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
RXOVF23 RXOVF22 RXOVF21 RXOVF20 RXOVF19 RXOVF18 RXOVF17 RXOVF16
15:8
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
RXOVF15 RXOVF14 RXOVF13 RXOVF12 RXOVF11 RXOVF10 RXOVF9 RXOVF8
7:0
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
RXOVF7 RXOVF6 RXOVF5 RXOVF4 RXOVF3 RXOVF2 RXOVF1 RXOVF0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 31-0 RXOVF<31:0>: FIFOn Receive Overflow Interrupt Pending bit
1 = FIFO has overflowed
0 = FIFO has not overflowed
REGISTER 23-8: CiTMR: CAN TIMER REGISTER
Bit
Range
Bit
31/23/15/7
Bit
30/22/14/6
Bit
29/21/13/5
Bit
28/20/12/4
Bit
27/19/11/3
Bit
26/18/10/2
Bit
25/17/9/1
Bit
24/16/8/0
31:24
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CANTS<15:8>
23:16
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CANTS<7:0>
15:8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CANTSPRE<15:8>
7:0
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CANTSPRE<7:0>
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 31-0 CANTS<15:0>: CAN Time Stamp Timer bits
This is a free-running timer that increments every CANTSPRE system clocks when the CANCAP bit
(CiCON<20>) is set.
bit 15-0 CANTSPRE<15:0>: CAN Time Stamp Timer Prescaler bits
1111 1111 1111 1111 = CAN time stamp timer (CANTS) increments every 65,535 system clocks
•
•
•
0000 0000 0000 0000 = CAN time stamp timer (CANTS) increments every system clock
Note 1: CiTMR will be paused when CANCAP = 0.
2: The CiTMR prescaler count will be reset on any write to CiTMR (CANTSPRE will be unaffected).